| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 1,754,065,154 visitors served. |
|
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
spermatophore |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.03 sec. |
|
spermatophore [spər′mad·ə‚fȯr] (zoology) A bundle or packet of sperm produced by certain animals, such as annelids, arthropods, and some vertebrates. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
|
| ? Mentioned in | ? References in periodicals archive | |
|---|---|---|
However, internal fertilization does not necessarily require that males directly deposit gametes within the female; in some species, such as salamanders, males leave a spermatophore that is retrieved by the receptive female (Halliday, 1990). Tufts scientists measured the duration of a male's flashes and compared them to his spermatophore size. The next morning at 0800 hr, the presence of a spermatophore substrate on the aquarium bottom or of a spermatophore in the female's cloaca was used to determine mating success. |
| Encyclopedia |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup | Partner with us |
|---|